@CHARSET "UTF-8";

#index {
	width: 1000px;
	height: 1400px;
	margin: auto; /*居中*/
}

/*头部*/
#top {
	height: 200px;
	margin-bottom: 20px;
}

#top_up {
	height: 150px;
}

#navigation {
	height: 50px;
	width: 100%;
	background-color: blue;
}

#navigation ul {
	margin: auto;
	height: 100%;
	width: 100%;
}

#navigation ul li {
	margin: 15px 8% auto 8%;
	color: #fff;
	font-size: 18px;
	float: left;
}
/*中间样式*/
#content {
	height: 1060px;
	margin-bottom: 20px;
	background-color: gray;
}
/*尾部样式*/
#tail {
	height: 100px;
	background-color: gray;
}